Sappaile BI, Wahyudin M, Ahmadin A, Lindawati L, Wardani HK. Integrating Problem-Based Learning to Develop Critical Thinking Competencies in Secondary Education. IJERE [Internet]. 2025 Jun. 30 [cited 2025 Dec. 13];4(1):345-54. Available from: https://ejournal.ipinternasional.com/index.php/ijere/article/view/1437